Inquilinus limosus in patients with cystic fibrosis, Germany.
Ontology highlight
ABSTRACT:
SUBMITTER: Wellinghausen N
PROVIDER: S-EPMC3298263 | biostudies-literature |
REPOSITORIES: biostudies-literature
Similar Datasets
Project description:Using a polyphasic approach (including cellular protein and fatty acid analysis, biochemical characterization, 16S ribosomal DNA sequencing, and DNA-DNA hybridizations), we characterized 51 bacterial isolates recovered from respiratory secretions of cystic fibrosis (CF) patients. Our analyses showed that 24 isolates belong to taxa that have so far not (or only rarely) been reported from CF patients. These taxa include Acinetobacter sp., Bordetella hinzii, Burkholderia fungorum, Comamonas testosteroni, Chryseobacterium sp., Herbaspirillum sp., Moraxella osloensis, Pandoraea genomospecies 4, Ralstonia gilardii, Ralstonia mannitolilytica, Rhizobium radiobacter, and Xanthomonas sp. In addition, one isolate most likely represents a novel Ralstonia species, whereas nine isolates belong to novel taxa within the alpha-PROTEOBACTERIA: Eight of these latter isolates are classified into the novel genus Inquilinus gen. nov. as Inquilinus limosus gen. nov., sp. nov., or as Inquilinus sp. The remaining 17 isolates are characterized as members of the family ENTEROBACTERIACEAE: The recovery of these species suggests that the CF lung is an ecological niche capable of supporting the growth of a wide variety of bacteria rarely seen in clinical samples. Elucidation of the factors that account for the association between these unusual species and the respiratory tract of CF patients may provide important insights into the pathophysiology of CF infection. Because accurate identification of these organisms in the clinical microbiology laboratory may be problematic, the present study highlights the utility of reference laboratories capable of identifying unusual species recovered from CF sputum.
| S-EPMC130740 | biostudies-literature
Project description:This multi-center study will compare multi-target DNA and quantitative FIT stool-based testing to colonoscopy in individuals with Cystic Fibrosis (CF) undergoing colon cancer screening with colonoscopy. The primary endpoint is detection of any adenomas, including advanced adenomas and colorectal cancer (CRC).
| 2726863 | ecrin-mdr-crc
Project description:Sweat plays a crucial role in thermo-regulation and skin health and potentially antimicrobial defense. Its composition is highly dynamic and its homeostasis involves a fine tuning of metabolic pathways. In-depth profiling of sweat protein composition will increase our understanding of skin disorders. Cystic Fibrosis (CF) is associated with high NaCl sweat concentration due to the absence of the CFTR protein. Patients with CF (pwCF) often display aquagenic palmoplantar keratodermia, a rare skin disorder characterized by skin wrinkling with oedema and whitish papules on the palms and/or soles, the pathophysiology of which is unknown. We report an in-depth analysis of the human sweat proteome of pwCF patients in comparison with that of healthy subjects (S).
2023-03-11 | PXD032894 | Pride
Project description:BackgroundBronchiectasis is associated with morbidity, low exercise capacity and poor quality of life. There is a paucity of data on exercise capacity using cardiopulmonary exercise test (CPET) in non-cystic fibrosis (CF) bronchiectasis. Our aim was to compare exercise capacity using CPET in CF and non-CF bronchiectasis patients.MethodsCross-sectional retrospective/prospective controlled study assessing CPET using cycle ergometer. Exercise parameters and computed tomography (CT) findings were compared. Results: Hundred two patients with bronchiectasis and 88 controls were evaluated; 49 CF (age 19.7 ± 9.7 y/o, FEV1%predicted 70.9 ± 20.5%) and 53 non-CF (18.6 ± 10.6 y/o, FEV1%predicted 68.7 ± 21.5%). Peak oxygen uptake (peak [Formula: see text]) was similar and relatively preserved in both groups (CF 1915.5±702.0; non-CF 1740±568; control 2111.0±748.3 mL/min). Breathing limitation was found in the two groups vs. control; low breathing reserve (49% in CF; 43% non-CF; 5% control) and increased [Formula: see text] (CF 31.4±4.1, non-CF 31.7±4.1 and control 27.2 ± 2.8). Oxygen pulse was lower in the non-CF; whereas a linear relationship between peak [Formula: see text] vs. FEV1 and vs. FVC was found only for CF. CT score correlated with [Formula: see text] and negatively correlated with [Formula: see text] and post exercise oxygen saturation (SpO2).ConclusionsCPET parameters may differ between CF and non-CF bronchiectasis. However, normal exercise capacity may be found unrelated to the etiology of the bronchiectasis. Anatomical changes in CT are associated with functional finding of increased [Formula: see text] and decreased SpO2. Larger longitudinal studies including cardiac assessment are needed to better study exercise capacity in different etiologies of non-CF bronchiectasis.Trial registrationClinicalTrials.gov, registration number: NCT03147651.
| S-EPMC6563963 | biostudies-literature
Project description:Cystic fibrosis is a common autosomal recessive disorder with drastic respiratory symptoms, including shortness of breath and chronic cough. While most of cystic fibrosis treatment is dedicated to mitigating the effects of respiratory dysfunction, the potential effects of this disease on vocal parameters have not been systematically studied. We hypothesized that cystic fibrosis patients, given their characteristic respiratory disorders, would also present dysphonic symptoms. Given that voice disorders can severely impair quality of life, the identification of a potential cystic fibrosis-related dysphonia could be of great value for the clinical evaluation and treatment of this disease. We tested our hypothesis by measuring vocal parameters, using both objective physical measures and the GRBAS subjective evaluation method, in male and female cystic fibrosis patients undergoing conventional treatment and compared them to age and sex matched controls. We found that cystic fibrosis patients had a significantly lower vocal intensity and harmonic to noise ratio, as well as increased levels of jitter and shimmer. In addition, cystic fibrosis patients also showed higher scores of roughness, breathiness and asthenia, as well as a significantly altered general grade of dysphonia. When we segregated the results according to sex, we observed that, as a group, only female cystic fibrosis patients had significantly lower values of harmonic to noise ratio and an abnormal general grade of dysphonia in relation to matched controls, suggesting that cystic fibrosis exerts a more pronounced effect on vocal parameters of women in relation to men. Overall, the dysphonic characteristics of CF patients can be explained by dysfunctions in vocal fold movement and partial upper airway obstruction, potentially caused by the accumulation of mucus and chronic cough characteristic of CF symptomatology. Our results show that CF patients exhibit significant dysphonia and suggest they may potentially benefit from voice therapy as a parallel treatment strategy.
| S-EPMC4010511 | biostudies-literature
Project description:This SuperSeries is composed of the following subset Series: GSE28306: Expression data from Burkholderia multivorans cystic fibrosis clinical isolates GSE30402: Hybridization of Burkholderia multivorans D2095 and D2214 genomic DNA Refer to individual Series
2011-08-21 | E-GEOD-30568 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the SubSeries listed below.
2011-08-22 | GSE30568 | GEO
Project description:Using the 450K BeadChIP, we profiled DNA methylation in nasal epithelial cells collected from CF patients homozygous for the CFTR p.Phe508del mutation and healthy controls. We replicated DNA methylation at CpG sites by pyrosequencing. Patients were stratified according to their lung function (forced expiratory volume in 1 second). Our study (i) points to the importance of genes responsible for the integrity of the epithelium and the inflammatory and immune responses to explain lung disease variability in CF, (ii) highlights new candidate genes potentially involved in lung disease severity, while it corroborates the role of known modifier genes, and (iii) suggests that CF-associated dynamic changes of DNA methylation are prominent in transcriptionally active genomic regions. Bisulphite converted DNA from the 48 samples were hybridised to the Illumina Infinium 450k Human Methylation Beadchip
2018-07-31 | GSE101641 | GEO
Project description:Improved understanding of non-respiratory infections in cystic fibrosis (CF) patients will be vital to sustaining the increased life span of these patients. To date, there has not been a published report of urinary tract infections (UTIs) in CF patients. We performed a retrospective chart review at a major academic medical center during 2010-2020 to determine the features of UTIs in 826 CF patients. We identified 108 UTI episodes during this period. Diabetes, distal intestinal obstruction syndrome (DIOS), and nephrolithiasis were correlated with increased risk of UTIs. UTIs in CF patients were less likely to be caused by Gram-negative rods compared to non-CF patients and more likely to be caused by Enterococcus faecalis. The unique features of UTIs in CF patients highlight the importance of investigating non-respiratory infections to ensure appropriate treatment.
| S-EPMC9627942 | biostudies-literature
Project description:Gene expression profiles were recorded from rectal suction specimens of Cystic Fibrosis (CF) patients, carrying the CF-specific D508 mutated CFTR-allele. These profiles were compared with gene expression profiles from rectal suction specimens of non-CF subjects (control). We used Affymetrix GeneChip HG-U133A microarrays to record the gene expression profile of 16 CF and 13 non-CF individuals. Rectal suction specimens representing rectal mucosal epithelia were collected from CF patients and non-CF individuals. Biopsies were analyzed for residual function using ICM and total RNA was isolation immediately using the Qiagen RNeasy protocol with on column DNA digestion. About 1-5 µg RNA were obtained from each individual. Integrity of total RNA samples was monitored by gel-electrophoresis before cDNA synthesis. Labeled cRNA synthesis and hybridization was performed following standard protocols.
2013-11-28 | E-GEOD-15568 | biostudies-arrayexpress